12806991

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{3677}}^1$

素因数の和:3732

約数の個数: 20

約数和(自身を含む): 19581672

約数和(自身を除く): 6774681

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 3677, 11031, 33093, 99279, 158111, 297837, 474333, 1422999, 4268997, 12806991]

約数ペア:

[(1, 12806991), (3, 4268997), (9, 1422999), (27, 474333), (43, 297837), (81, 158111), (129, 99279), (387, 33093), (1161, 11031), (3483, 3677)]